For use with M18™ Cordless Caulk and Adhesive Guns. The 10 oz Carriage Conversion Kit accepts all standard caulking tubes and cartiges. This kit includes all the necessary components to convert material types from the 2642-21CT or 2643-21CT 20 oz Barrel Sausage Style Caulk and Adhesive Guns to be able to dispense 10 oz tubes.